在巴西北部海岸采集的papyraceum (Gabb, 1873)的生物特征和相对生长

Chagas Rafael, A. Vale, Wagner Santos, Alex Klautau
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引用次数: 0

摘要

本研究旨在描述巴西北海岸虾类渔业副渔获物纸莎草蚌(Amusium papyraceum, Gabb, 1873)的生物特征和相对生长特征。为此,对2015年10月采集的51个个体进行了壳的外部测量(长、宽、高)与湿生物量之间的形态计量学关系。结果表明,该软体动物的形态计量学和生物形态计量学关系是“非常强的和正的”。纸草壳宽的关系以负异速生长分类,表明该形态计量指标的生长速率高于其他形态计量指标。值得注意的是,随着品种的增长,纸草的密度指数呈比例增加。这种产量的差异可能来自于个体性腺的成熟,这导致性腺的大小增加。这里提供的信息将资助涉及该物种种群动态的进一步研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
BIOMETRIA E CRESCIMENTO RELATIVO DO BIVALVEAmusium papyraceum (Gabb, 1873) COLETADO NA COSTA NORTE DO BRASIL
The present study aims to characterize the biometry and relative growth of Amusium papyraceum (Gabb, 1873) collected as by-catch of shrimp fisheries on the North Coast of Brazil. For that, morphometric relationships were performed between the external measures of the shell (length, width and height) and the wet biomass of 51 individuals collected in October 2015. The results indicate that the morphometric and biomorphometric relationships of the mollusk are classified as “extremely strong and positive”. Relationships involving A. papyraceum shell width were classified by negative allometry, which indicates that this morphometric measure grows at a higher rate than the others. It is noteworthy that the density index of A. papyraceum increases proportionally with the growth of the species. This difference in yield probably comes from the gonadal maturation of the individuals, which causes the gonads to increase in size. The information presented here will subsidize further research involving the population dynamics of the species.
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